1 files changed, 127 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/boost.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/boost.c
new file mode 100644
index 000000000000..c1835e591c44
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/boost.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2013 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/bios.h>
+#include <subdev/bios/bit.h>
+#include <subdev/bios/boost.h>
+
+u16
+nvbios_boostTe(struct nouveau_bios *bios,
+               u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
+{
+        struct bit_entry bit_P;
+        u16 boost = 0x0000;
+
+        if (!bit_entry(bios, 'P', &bit_P)) {
+                if (bit_P.version == 2)
+                        boost = nv_ro16(bios, bit_P.offset + 0x30);
+
+                if (boost) {
+                        *ver = nv_ro08(bios, boost + 0);
+                        switch (*ver) {
+                        case 0x11:
+                                *hdr = nv_ro08(bios, boost + 1);
+                                *cnt = nv_ro08(bios, boost + 5);
+                                *len = nv_ro08(bios, boost + 2);
+                                *snr = nv_ro08(bios, boost + 4);
+                                *ssz = nv_ro08(bios, boost + 3);
+                                return boost;
+                        default:
+                                break;
+                        }
+                }
+        }
+
+        return 0x0000;
+}
+
+u16
+nvbios_boostEe(struct nouveau_bios *bios, int idx,
+               u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
+{
+        u8  snr, ssz;
+        u16 data = nvbios_boostTe(bios, ver, hdr, cnt, len, &snr, &ssz);
+        if (data && idx < *cnt) {
+                data = data + *hdr + (idx * (*len + (snr * ssz)));
+                *hdr = *len;
+                *cnt = snr;
+                *len = ssz;
+                return data;
+        }
+        return 0x0000;
+}
+
+u16
+nvbios_boostEp(struct nouveau_bios *bios, int idx,
+               u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
+{
+        u16 data = nvbios_boostEe(bios, idx, ver, hdr, cnt, len);
+        memset(info, 0x00, sizeof(*info));
+        if (data) {
+                info->pstate = (nv_ro16(bios, data + 0x00) & 0x01e0) >> 5;
+                info->min    =  nv_ro16(bios, data + 0x02) * 1000;
+                info->max    =  nv_ro16(bios, data + 0x04) * 1000;
+        }
+        return data;
+}
+
+u16
+nvbios_boostEm(struct nouveau_bios *bios, u8 pstate,
+               u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
+{
+        u32 data, idx = 0;
+        while ((data = nvbios_boostEp(bios, idx++, ver, hdr, cnt, len, info))) {
+                if (info->pstate == pstate)
+                        break;
+        }
+        return data;
+}
+
+u16
+nvbios_boostSe(struct nouveau_bios *bios, int idx,
+               u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len)
+{
+        if (data && idx < cnt) {
+                data = data + *hdr + (idx * len);
+                *hdr = len;
+                return data;
+        }
+        return 0x0000;
+}
+
+u16
+nvbios_boostSp(struct nouveau_bios *bios, int idx,
+               u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len,
+               struct nvbios_boostS *info)
+{
+        data = nvbios_boostSe(bios, idx, data, ver, hdr, cnt, len);
+        memset(info, 0x00, sizeof(*info));
+        if (data) {
+                info->domain  = nv_ro08(bios, data + 0x00);
+                info->percent = nv_ro08(bios, data + 0x01);
+                info->min     = nv_ro16(bios, data + 0x02) * 1000;
+                info->max     = nv_ro16(bios, data + 0x04) * 1000;
+        }
+        return data;
+}